BMW part number 12521285014 is a factory engine electrical/interior wiring clamp. Weighing only 3 grams, this tiny retaining clip is used across several vehicle assemblies to properly secure and guide wiring looms, preventing wire chafing, pinches, and heat exposure. This part remains an active, inexpensive component, broadly available from authorized dealers and European car specialist stores.
Vehicle Applications & Placements - This retaining clamp fits an expansive lineup of 11 primary models across over 130 variations built roughly between 1988 and 2003. Its exact application depends entirely on your specific model configuration:
1. Engine Bay Electrical Routing: Found on early flagship models like the E32 750iL and E31 850i (M70 V12 engine setups), typically pinning down wiring paths near the thermostat, water pump, or engine electrical harness networks
2. Interior Electrical Seat Frames: Rerouted into the cabin on iconic executive and sports models—including the E36 3-Series (318ti, 325i, 328i, and M3) and E46 3-Series. It clips the internal wiring runs tightly inside the front electronic sport seat and electrical backrest frames
